Paper and other fibrous sheet material hood cap



Oct. 31, 1933. L. wRlGHT 1,933,466-

PAPER AND OTHER FIBROUS SHEET MATERIAL HOOD CAP Filed Nbv. so, 1925 Patented Oct. 31, 1933 PAPER AND o'rHER ,FIBROUS SHEET MATERIAL HOOD CAP Wilbur L. 'Wright, Fulton, N. Y., assignor to Oswego Falls Corporation, Fulton, N'. Y., a corporation of New York Application November 30, 1925 Serial No. 72,318

,11 Claims.

This invention relates to hood caps, particularly to binder-carrying-hood caps; and an object of the invention is to provide a fibrous or other paper like hood cap for bottles and other containers, provided with a binder composition that includes sulphur as an ingredient.

With this and other objects in view,'my invention consists in certain novel features, and in a novel material and a novel article, as more fully and particularly set forth and specified hereinafter.

Referring to the accompanying drawing forming a part hereof:

Fig. 1 is a side elevation of the mouth'portion 5 of a container, such as aso-called milk bottle,

covered by a hood cap or cover, more or less diagrammatically illustrated as including or embodying my invention.

Fig. 2 shows the structure of Fig. 1, in vertical section.

Fig. 3 is a plan view of a sheet of paper or other fibrous material embodying my invention.

Fig. 4 shows a sheet material hood cap in accordance with or embodying my invention, in form for application to a container to cover and protect the mouth thereof.

In the drawing, I show the head or mouth portion of a glass milk bottle (to represent any suitable container) having exterior annular enlargement or vertically rounded rim 1, that radially contracts inwardly and downwardly to the neck 2, of the container to form annular downwardly facing shoulder or contraction 3.

Ipropose to retain the skirt of the hood cap in rigid contracted form under the enlarged bottle head and tightly surrounding and fitting and preferably sealing against the bottle neck by the use of sheet material impregnated with or carrying a strong hard high-melting point quick- 4o setting binder composition, preferably light in color, that embodies sulphur and one or more additional modifying ingredients, whether such impregnated sheet material constitutes the annular lower or securing portion of the hood cap 45, skirt, or is formed. by an extra securing ring of such impregnated sheet paper or like material surrounding the skirt for holding the same tight- 1y contracted to the bottle neck against leakage and against accidental release.

When this impregnated or coated sheet material hood cap disk is rendered soft or pliable by mechanism will then maintain the soft sheet" (cl. 215 ss material in such form, until the impregnated material sets to rigid cap securing form by cooling as it does quickly within a few seconds. The set impregnated material is then of suificient stiffness and tensile strength to hold the hood 53 cover sealed on the bottle mouth against accidental removal and looseness. However, by the exercise of suflicient strength, the cover can be stripped from the bottle mouth when necessary.

In Figs. 1, 2 and 4 of the drawing I show a sheet {35 paper material hood cover or cap 4 to cover the mouth portion of a bottle or other container, and formed with an annular'depending skirt 5 of sufficient length to permit contraction thereof below the bottle rim 1 to surround and closely fit the-7 bottle neck Zunder the exterior enlargement of the bottle head, with the ends in view of locking the cap on the bottle mouth and sealing the bottle mouth against passage of liquid to the interior thereof. The portion 6, of the cover or cap skirt {(5 that is contracted below the bottlerim, to lock or secure the cap, by the formation of said portion into gathers, ridges, corrugations, puckers,-overlapping pleats or crimps 6a, which I call the securing portion of the cover or cap skirt." In the example shown, it is this annular portion 6 of the cap or cover skirt that possesses the hereinbefore mentioned characteristics by reason of the impregnating binder carried thereby, although I do not wish to so limit my invention as the cap or cover can in whole or in part embody the binder. q

The caps or covers are usually produced and shipped in the tapered or flaring form shown by Fig. 4, so as to be readily applicable to the bottle mouths. I

Dies are usually employed to draw the thin or single ply sheet paper material from disks such as shown by Fig. 3, into the form shown by Fig. 4, although, if desirable, the bottlers can be supplied w'ith'the flat disks of Fig. 3, for use in ma- 5 chines that will properly shape such disks and finish them on the bottle mouths in the form of hoods as in Fig. 1.

Whether the sheet material is supplied the bottler in the form of Fig. 3 or in the form of Fig. 4, such sheet material throughout, or only at the securing portions 6 thereof embodies the binder as indicated by the dotted field, and is heated to the necessary temperature to render said binder carrying securing portion pliable, soft, or moldable, immediately before application tothe bottle, or by the molding head that molds the same to form, snugly fitting the bottle neck and under the bottle head enlargement.

The hood cap preferably in the form of Fig. 4, are subjected, in any suitable manner or by any suitable means, to the binder in hot liquid form so that, at least the annular securing portions of the cap skirts, become impregnated with the hot liquid binder and on cooling set in rigid form.

This composition is produced by reducing the sulphur and a hard quick setting wax or waxes to liquid form by heat and mixing the ingredients.

In producing my sulphur-wax binder composition, I usually mix the molten wax with a surplus quantity or over-supply of molten sulphur, so that the melted wax will take up as much sulphur as possible, i. e. the melted wax will take up sulphur until saturated, and when agitation of the mixture ceases, the surplus sulphur settles or is precipitated,. and the sulphur-wax composition can be drawn oif.

As the wax ingredient, I prefer to employ carnauba wax, although Montan wax, candelilla wax, shellac wax, or Smith it Nicholsfvegetable wax, or other hard high-melting point quick setting waxes, can be employed, with or without the addition of other ingredients in small proportion to add strength, or to prevent bottle fouling in such sulphur and wax composition that would otherwise objectionably foul glass.

Candelilla, carnauba, and Smith a Nichols, are vegetable waxes of commerce and are thus known in the wax trade. Montan wax is a mineral wax of commerce, and is known to the wax trade. Shellac wax is an insect product.

Montan is imported from Europe and is believed to be derived from thuringian lignite. I employ refined or bleached Montan wax, which in golor ranges from white to yellow, and has a melting point from about 160 to 170 F.,'is a solid at climatic or atmospheric temperatures, has a characteristic aromatic odor, and is approximately insoluble in cold alcohol.

Smith it Nichols .vegetable wax is produced in a foreign country, and its importation into this country is apparently controlled by Smith 8; Nichols of New York, N. Y., as it is known commercially and named in price lists as Smith 8 Nichols or S. 81 N. vegetable wax. This prodnot is dark brown in color, hard, with a slight strawlike odor when cold and a characteristic sweet odor when heated, with a melting point of about 160 to 165 F.

Ordinary commercial sulphur in any of its various forms mightbe employed, but I preferably use lump sulphur. The wax and sulphur are preferably separately reduced to'liquid form and are drawn from their respective kettles or receptacles into a common kettle or receptacle wherein the two liquids are mixed and kept at a temperature of approximately from 235 to 300 F. between which temperatures the ingredients seem to combine or mix with the resulting binder composition containing approximately between one and two percent sulphur.

The impregnated paper material quickly cools at atmospheric or climatictemperatures, and sets to a condition of stifi. rigidity. The rigid stifi impregnated paper material becomes soft and moldable at a temperature of say about 210 F. more or less where the composition'is composed of carnauba wax and sulphur, and is thus heated for contracting around the bottle neck by suitable mechanism.

Many of the hard unrefined hard quick setting waxes of commerce, suitable for use as hood cap binders, as found on the market, are dark in color washed and dirty and objectionable in appearance for hood cap binder purposes.

I have discovered that these waxes are lightened 'in color by the sulphur treatment, and'that the resulting composition is of a lighter clearer color than the original wax, and is also otherwise rendered more desirable for hood cap binder purposes by the presence of the small sulphur percentage or proportion, in that the composition is somewhat harder and denser, and has greater water resistant qualities than the original wax, and is cheaper in cost than the original wax because of the very low cost of sulphur. The melting point of the composition seems to vary but slightly from that of the wax ingredient in its original condition, but the composition is-otherwise more desirable for hood cap binder purposes than the original wax ingredient.

A dark mineral wax, such as Montan wax, will take up the small sulphur percentage to form the sulphur-wax binder composition but such composition is but slightly cleared and lighter in color than the original Montan wax, but where hard waxes of vegetable and insect origin are mixed with sulphur the resulting composition is decidedly lightened and clear in color, and this desirable result in also gained where a small pro portion of a water-resistant strong yet sticky substance, such as rosin, say about five percent,

is added to the composition to increase the strength and water resistant qualities thereof without rendering the composition so adhesive as to foul glass bottles or form deposits thereon that cannot be easily rubbed or stripped therefrom. The degree of adhesiveness of such compositions 1 can be regulated or predetermined by the percentage or proportion of the rosin or like ingredient, to gain, where desired, a slight adhesion between the binder carrying skirt of the hood cap and the glass bottle surface for sealing purposes 1 without leaving an objectionablebottle fouling deposit on the glass when the cap skirt is stripped therefrom. Also where a wax, such as candelilla wax, is employed as the wax ingredient in the sulphur-wax composition, a small percentage oi 1 some grease-like substance, such as parafiine, canbe added to prevent the resulting binder composition from being objectionably adhesive on glass surfaces or from leaving a glass fouling deposit on bottles. The adhesive qualities of such a com- 1 position can be regulated and predetermined by yarying the proportion of the grease-like ingrediem but the percentage of such ingredient must be small as the strength and hardness of such binder composition is thereby reduced and its melting point thereby lowered. I o

By adding sufficient wax to the sulphur, and then applying the hot liquid binder composition to the sheet material, I provide impregnated hood cap securing sheet material that possesses great 1 tensile strength and rigidity, is insoluble and non-.- absorbent for my purposes, is of a desirable color, is not objectionably brittle, isv tasteles, odorless, light in color, non-poisonous, does not attract insects or vermin, with the exceptions mentioned 1 does not stick" to glass or metal or foul or adhere to the contracting crimping heads or tools when hot, sets or hardens quickly, is easily contracted and pressed on the bottle necks when hot, and will not mold or mildew.

While the impregnated sheet material will with or give the impression that the impregnated or securing portion 6 is stuck or adhered to the glass bottle neck as such is not the fact, nor is said figure of the drawing intended to indicate a substantial or really visible surface coating of sulphur or sulphur and wax on the paper material but is intended to indicate rigidly adhering overlapping folds, pleats, or creases of the impregnated material.

For use in connection with hood caps or covers on glass bottles of food products, it is desirable that the impregnated sheet material be non-glass fouling both when hot and cold, and possess the quality of stripping or peeling from glass surfaces, and this is a peculiar characteristic of carnauba and certain other of the waxes and compositions mentioned.

' The binder composition is saturated with and modified by the sulphur dispersed therethrough and'alloyed or blended with the other ingredient or ingredients of the composition which act to retard, decrease or modify the crystallization of the sulphur after fusing.

The instant application is a continuation in part of my patent application Serial No. 722,353, filed June 25, 1924, for paper and other fibrous sheet material.

What I claim is:

1. A sheet fibrous material hood cap carrying a quick-setting hard water-resistant plastic binder composition that embodies a small percent ofsulphur.

2. A sheet paper-like hood cap carrying a hard quick-setting binder embodying'wax saturated with sulphur, the binder being of a lighter color than the wax in its original condition.

3. A paper material hood cap carrying a binde composition embodying a hard wax and a small percent of sulphur, the composition being lighter in color than the wax before being mixed with the sulphur. 1

4. A paper material hood cap carrying a binder composition of carnauba wax and sulphur.

6. A hood cap composed of a single ply disk of sheet paper carrying at its skirt portion a binder composition of a hard quick setting waxlike plastic embodying and lightened in color by sulphur.

6. A bottle sealing paper material hood capat least the peripheral portion of which carries a binder composition of matter comprising sulphur and a substance capable of retarding the crystallization of sulphur.

7. A hood cap composed of sheet paper and a quick setting hard water resistant binder composition embodying a plastic saturated with sulphur. 1

8. A. hood cap of fibrous sheet-form material, carrying a quick setting water resistant plastic binder saturated with sulphur and which is a hard solid when cold.

9. A hood cap of fibrous sheet form material, carrying a quick-setting water resistant plastic binder which is a hard solid when cold, which 11. A bottle cap of paper the lower edge por tion of which is adapted to be crimped and molded over the mouth of the bottle, said crimped portion carrying intimately bonded thereto, a

.binder mixture comprising essentially sulphur and a substance which will modify and decrease the crystallizing properties of sulphur, said binding mixture stripping readily from the bottle glass surface on removal of the cap therefrom.

WILBUR L. WRIGHT. 

